TacomaNWTF.org

The jury is still out on which broadheads perform best - fixed blades or expandables . Though they have taken turkeys with fixed-blade broadheads, both Rutledge and Steele prefer expandable heads. Steele likes the larger cutting diameter found in most expandables.
"The two-blade mechanical head I use makes a three-inch cut that is deadly on a turkey's vitals. The wide cut causes a great deal of trauma and will anchor a well-hit bird."
Bruce Barrie, co-owner of Barrie Archery, believes any broadhead, fixed or expandable, with a wide cutting diameter, will do the job behind a well-placed shot. Barrie recommends archers use at least a 11/2-inch diameter cut or larger for turkeys.
For hunters choosing to use fixed-heads, I recommend backing them with an Adder or Star Point to slow down penetration. Judo or blunt-type points will dispatch a turkey, but only with a head shot, which is a very difficult shot and not recommended by most experts.